Seam for sewed articles.



S G TATE S EAM FOR SEWED ARTICLES. APPLICATION FIL ED JULY 23.1911. 1 71,241 Patented July 2,1918.

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Application filed July 23, 1917. V Serial No. 182,263.

To all whom it may concern:

Be it known that l, SAMUEL Gnonor. TATE, a citizen of the United States, esiding at Chicago, in the county of Cooli, State of Illinois, haveinvented certain new and useful Improvements in Seams for Sewed Articles, of which the following is a description, reference being had to the accompanying drawing and to the figures of reference marked thereon.

The invention relates to new and useful improvements in seams for sewed articles, and more particularly to a covering seam or seam which may be used for uniting and as at f. The needle tads 12 and 1 1 are covering the meeting edges of two sections of fabric.

An object of the invention is to provide a seam having a plurality of rows of connecting lines of stitching wherein each row includes a looper thread, and wherein the looper thread in one of the rows forms locked stitches and also serves to lock the loops in the other row or rows of stitching.

Tn the drawings,

Figure 1 is a top plan View on an enlarged scale showing sections of fabric united by my improved form of seam;

Fig. 2 is a bottom plan view of the seam;

Fig. 3 is a view similar to Fig. 1 but showing a slightly modified form of the invention Fig. 4 is a view similar to Fig. 2 but showing the modified form of the invention.

The invention consists in a seam for joining fabric sections preferably having their meeting edges abutted or slightly overlapped.

The seam includes parallel rows of stitching and each row of stltching includes a needle thread and a looper thread. The looper thread in one of the rows forms with its needle thread locked stitches and these locked stitches serve also to lock the loops i'nthe other rows of stitches. I

Referring more in detail to the drawings, the seam shown in Figs. 1 and 2 is a three needle seam in which the needles operate to produce three parallel rows of needle thread loops, and these needles are-set abreast. The

three needle threads are indicated at 12, 13,

and 14, respectively. The needle loops of these needle threads are also indicated respectively at 15, 16 and 17. The fabric sections are indicated at F and F. The meeting edges of the fabric sections are indicated Specification of Letters Patent.

Patented ellnly 2, 1%38.

formed into parallel rows of loops which extend respectively downwardly, through the fabric sections F and- F adjacent the meeting edges thereof. The needle thread 13 is formed into a row ofloops which pass downwardly between the abutted edges of the fabric sections. A covering thread 18 passes around each needle loop of the outer rows and twice underneath the needle thread inthe center row between each adjacent pair of needle thread loops 16. The covering thread forms a support for the center thread, the loops of which do not enter the fabric sections.

The needle thread loops on the lower face of the fabric are secured by looper threads. There is a looper thread for each line of stitching. The looper threads are indicated at 19, 20, and 21, respectively. These looper threads are carried by threaded loopers which move parallel with the line of feed. The looper thread 19' is formed into loops and these loops are passed through the needle thread loops 15, and each looper thread loop in this thread 19 is secured by the next formed needle thread loop and also the next needle thread loop 16. In

other words, this looper thread is spread laterally so as to be entered by the needles carrying the threads 12 and 13, respectively, on the next descent of the needles. The

looper thread 20 is formed into loops, each of which is passed through a needle loop 16,

and then this looper thread loop is spread laterally, and is secured to the next formed needle thread loops 1% and 17. he looper thread 21 is formed into a series of loops which are concatenated only withthe needle My improved seam as described above:

forms a very eficient seam for joining the meeting edges of fabric sections. The seam are mav be made by a multiple needle machine wherein the needles are set abreast, and the loopers move in planes parallel with the line of feed. The threads very efiiciently cover the meeting edges of the fabric sections as well as join the same. It will be understood that the number of lines of stitching may be increased or diminished as desired. In Figs.

.3 and 4 l have shown the same construction as described above, in a two needle seam. In these figures of the drawings, the needle threads are indicated at 1 and 2, respectively.

I has all the characteristics ofthe seam above described and further description thereof is not thought necessary.

While I have described the invention as applied to fabric sections having their edges abutted, it will be obviousthat the stitches may be used in other relations.

What is claimed is:

1. In a seam the combination with fabric sections having meeting edges of parallel rows of stitching, each row including a needle thread and a looper thread, the looper thread in one of said rows being concatenated with the needle thread loops thereof to form locked stitches, the looper thread in the next adjacent row being extended laterally across the meeting edges and secured by said locked stitches.

I earner 2. In a seam the combination with fabric sections having meeting edges of parallel rows of stitching, each row including a needle thread and a looper thread, the looper thread in one of said rows being concatenated with the needle thread loops thereof to form-locked stitches, the looper thread in the next adjacent row being extended laterally across the meeting edges and secured by said locked stitches, and a covering thread joining the lines of stitching on the opposite face of the fabric sections from the looper threads.

3. In a scam the combination with fabric sections having meeting edges between two parallel rows of needle thread loops respectively extending downwardly through the fabric sections adjacent the meeting edges thereof, another row of needle thread loops arranged intermediate and parallel with said first mentioned rows and extending downwardly between the fabric sections, a looper thread for each row of needle thread loops, the looper thread in one of the outer rows being concatenated with the needle thread loops thereoi only to form locked stitches, the looper thread in the intermediate row secured by the needle loops therein and also extended laterally and secured by the needle loops of the locked stitches, and the looper thread in the other outer row being secured by the needle thread loops therein and also extended laterally and secured by the needle thread loops in the intermediate row.

In testimony whereof, I ailix my signature in the presence of two witnesses.

' SAMUEL GEURGE TATE.

Witnesses:

A. D. GILRow, J. H. Masmnn. 

